Aquarium fishery

Lore & Background

Aquarium fisheries operate largely unregulated, lacking a central database to assess environmental impact. Different fisheries are managed with varying oversight; for example, cyanide use to stun fish is widespread in the Philippines despite being officially illegal. The US monitors imports of CITES-listed species, but most aquarium fish are lumped as marine tropical fish (MATF), so endangered species within that group are not monitored. The lack of data on life cycles, growth, and population trends makes impact assessment difficult.

Overcollection can damage coral reefs, as shown by the regal blue tang, which eats algae that overgrow corals; its removal endangers reef health. The Marine Aquarium Council (MAC) formed in 1998 by stakeholders including collectors, exporters, importers, retailers, aquarium keepers, public aquariums, conservation organizations, and government agencies. MAC recognized problems such as cyanide use, poor handling, unnecessary mortality, collection of unsuitable species, stock depletion, ecosystem effects, alien species introduction, lack of reliable data, limited government capacity, and potential trade restrictions. However, stakeholders could not regulate the industry, and MAC ceased functioning in 2008 due to internal disagreements.

Environmentalists have called for stricter regulation or prohibition of wild collection for private aquariums, noting that captive-bred tropical fish are readily available. Hawaii enacted some protection in the late 1990s by closing certain sections to aquarium fisheries, with evidence that these measures were effective, though reefs also face threats from fertilizer run-off and coastal development.

Reader's Guide

The significance of aquarium fishery lies in its scale and environmental impact. According to the article, tens of millions of marine animals are collected annually, with more than half ending up in the US. An estimated 1,800 species of tropical fish are traded, and Sea Shepherd estimates about 25 million fish are in the commercial pipeline, with 'nearly all will die within a year from the point of capture'; other estimates put the number at 30 million animals, mostly from the Philippines and Indonesia. The industry also moves invertebrates and live corals.

The legacy of the industry includes failed self-regulation: the Marine Aquarium Council (MAC), formed in 1998 by diverse stakeholders, could not regulate the industry and ceased in 2008 due to internal disagreements. The lack of oversight has allowed destructive practices like cyanide fishing and overcollection, exemplified by the regal blue tang's removal endangering coral health. Environmentalists have called for prohibition, arguing that captive-bred fish are available. Hawaii's partial closures in the late 1990s showed protective measures can be effective, but reefs remain threatened by other factors. The article notes that the industry lacks a central database, making it difficult to monitor impact on tropical fish populations.

Did You Know?

• Cyanide is used to stun fish for collection in the Philippines, despite being officially illegal.
• The regal blue tang eats algae that overgrow corals; its removal endangers coral reef health.